For the orthographic projection as a map projection, see Orthographic projection in cartography. For mathematical discussion in terms of linear algebra, see Projection (linear algebra).
Bullfrogs are the largest real frog found in North America, weighing up to 0.5 kg and measuring 460 mm in length. Their average length is 100-175 mm. Their color varies from brownish to shades of green, often with spots or blotches of a darker color around their backs. Their back feet are fully webbed.
Pet Bullfrogs eat much less than wild Bullfrogs and their diet is less varied, as well. As a rule, captive Bullfrogs are generally fed about every other day if they are fully mature, every day is they are younger. And their diet consists of insects, like crickets, worms and small, dead mice. Naturally, these food sources are readily available at any pet shop. There is one more thing you need to know, especially if you have a pet Bullfrog. All Bullfrogs tend to eat less when the weather turns cold.